Small vessel phenomena in the coronary microcirculation: Phasic intramyocardial perfusion and coronary microvascular dynamicsSan Román, José Alberto; Sanz-Ruiz, Ricardo; Ortega, José Ramón; Pérez-Paredes, Matías; Rollán, María Jesús; Muñoz, Ana Cristina; Segura, Federico; Jimenez, Diego; Carnero, Andres; Pinedo, Marta; Arnold, Roman; Gómez, Itziar; Fernández-Aviles, Francisco · Journal of Cardiothoracic Anesthesia · 1989